Port Sanilac lighthouse
Port Sanilac Lighthouse
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| Location | Port Sanilac, Michigan |
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| Coordinates | 43°25′44″N 82°32′24″W / 43.42889°N 82.54000°WCoordinates: 43°25′44″N 82°32′24″W / 43.42889°N 82.54000°W |
| Year first lit | 1886 |
| Automated | 1928 |
| Foundation | dressed stone masonry/timber |
| Construction | Brick |
| Tower shape | Octagonal hourglass |
| Markings / pattern | White with red roof |
| Height | 59 feet (18 m) |
| Focal height | 69 feet (21 m) |
| Original lens | Fourth order Fresnel lens |
| Current lens | Fourth order Fresnel Lens |
| Range | 16 nautical miles (30 km; 18 mi) |
| Characteristic |
Fl (3) W 10s 1s fl 1s ec. 1s fl 1s ec. 1s fl 5s ec. |
| ARLHS number | USA-651 |
| USCG number |
7-10115 |
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Port Sanilac Light Station
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| Location | Lake St., Port Sanilac, Michigan |
| Area | 0.3 acres (0.12 ha) |
| MPS | U.S. Coast Guard Lighthouses and Light Stations on the Great Lakes TR |
| NRHP Reference # | 84001842 |
| Added to NRHP | July 19, 1984 |
Fl (3) W 10s 1s fl 1s ec. 1s fl 1s ec.
7-10115
Port Sanilac Light is a United States Coast Guard lighthouse located on Point Sanilac, near Port Sanilac on the eastern side of Michigan's Thumb. It is an automated and active aid to navigation on Lake Huron.
Characterized by shallow water and sandbanks, the 75-mile (121 km) stretch of coastline between the Fort Gratiot Light and Pointe aux Barques Light is a hazard to navigation. Even after the establishment of the Sand Beach Harbor of Refuge Light in 1875, 30 miles (48 km) of coast line still remained completely unlit.
Eighteen years after the first attempts to get congressional funding, the station was established and first lit in 1886. This Lake Huron lighthouse is 30 miles (48 km) north of the Fort Gratiot Lighthouse (Michigan's oldest) in Port Huron, Michigan.
The Port Sanilac Light's foundation consists of dressed stone and timber. The octagon-hourglass-shaped tower (near its top) is made of tiered and reverse stair-stepped brick. It is 14 feet (4.3 m) in diameter at its base, and tapers vertically to 9 feet (2.7 m) diameter below the gallery. Eschewing the usual corbels, a dozen courses of bricks create the gallery support, with four indentations for windows, creating a watch room for the four points of the compass. The lighthouse was built at a cost of $20,000. The placement and the unique shape were dictated by and created because of budgetary constraints (Congress appropriated only half the money requested). Designed by Eleventh District Engineer Captain Charles E. L. B. Davis, the design has been called "both unique and architecturally significant in its elegance." The tower is white with a red roof.
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